Trolley-head support



May 18 1926. 1,585,352

x R. J. KRAUTHEIM TROLLEY HEAD SUPPORT Fled Sept. 14, 1925 tollen" Patented ltley l, l926.

ons;

RICHARB J'. KRAUTHEIIYI, OF NEWARK, NEW' JERSEY; BERTHA KRATEEM AD lllSTRATPY GF @ATD EC'PR J. FRAUTHEEM, DECEASEQ.

TROLLEY-HEAD SUPORT.

Application filed September 14, 1925.

rlfhe objects of this invention are to secure an improved support for a` trolley head and more par icularly one which will allow the heed a limited rotary movement upon :in arial line extending` centrally and longitudinally ot the trolley pole and also allow smid head a limited swinging movement horizontally trom side to side; to thus impart to the trolley head suilicient freedom so the-t the trolley Wheel can follow the sharp curve ot the overhead Wire at a street corner or the like; to secure less Wear and friction; to l in liability ot the trolley head coming ot' the wire, and to obtain other .results and advantages may be brought out by the description.

lleterrine; to the accompzuiying drawing, in which like numerals ot reference indicate the same parte in the several views,

Figure l is a perspective view ot the upper ond otl a trolley pole provided with my support carrying the trolley Wheel and its fork;

lfiguro 2 shows the detachable part ot the support removed, and the trolley orlr in section, dot a e dash lines indicating the Yiositions of certain parts when the trolley vheel swings to the extreme lett-hand;

Figure 3 is a central longitudinal section at right angles to the view seen in Figure 2, with dot and dash lines showing the position oft a certain cross-piece when the trolley lxead turns to the limit oi its rotary movement as shown in Fig. 4, and

re 4 is a cross-section on line fl- 3, with the trolley head turned to i141nit o't rotary movement in one the direction.

ln said drawings, l indicates the upper eert ot a trolley pole such as projects from vhe trolley cars which are common on elecric street railways, and which carries at ts upper end my improved support for the trolley heed connprising` the Wheel 2 and 'ts torlr 3. Said support is substantially cylindrieal in cross-section, slightly flaring upwardly, and comprises two sections one ot which has a substantially cylindrical end portion l socketed as at 5 to receive the upper end of the trolley pole l and be secured thereon as by a rivet 6. Beyond said portion l the support is halved, so that the removable section 'l' lies llatwise agcinstithe corresponding portion 9 of the other section and is shown secured thereto by suitable serial No. 56,206.

relation. The stem 2 projects through a transverse slot ll in the end of the support formed by oppositely recessinp,` thehalved portions .7 and 9 of said support, as at l5, 16, and in the licor ot said reces?y are :iet steel plates l?, 18 in which are arcuate grooves 191, 20, respectively, to receive a steel roller 2l upon the stem l2, said roller being' held by s stop 22 at the side of the Wheel next the ball l1 and a collar and pin 2 at the opposite side. The body ol the support, comprising the two halves 7 and 9 and the end portion a-, is preferably ot malleable iron, and the said steel plates 1.7, 18 riveted thereto.

Obviously, the range ot travel ot the roller 2l in the grooves 19, 20 permits a limited swinging of the trolley Wheel 2 end its fork 3 in the direction ot the slot lt, see Figure l, which thus contines such swinging to a horizontal side to side path such as is advantageous in rounding a sharp curve or the like.

Opposite the stem l2 the ball l1 has a projecting,` neck 25 carrying a cross-piece 26 which lies in the plane o1"- swinging of the trolley head Which has been described. This cross-piece 26 is preferably curved concentric with the ball l1 and moves in a chamber formed by opposite recesses 27, 28 in the halves ot the trolley hea-d, said chamber being,` enough deeper than the thickness of the crosspiece 2G to permit said cross-piece to twist to a limited extent. rllhis twisting permits the trolley Wheel, in turning a sha-rp corner or the like, to momentarily take position, in connection with its freedom ot swinging already described, so as to holdV the Wheel 2 always in iirm contact with the trolley Wire. At the saine time, such twisting is limited by the ends of the cross-piece 26 striking the bottoms of the recesses 2T, 28,

as shown in Figure 4E, and it will be noted that said recesses are lengthened beyond the length of the crosspiece 26 to permit the roller 21 to roll back and forth its entire range of movement.

Obviously, various modifications may be lltl mede by those skilled in the nrt in carrying out my invention, u'ithout departing from the spirit sind scope thereof, and l do not desire to be understood es limiting,I myself except es required by the following clninis .vhen const-reed in the light of the prior nrt.

Having thus decribed the invention, what l claim is:

l. fr trolley head support tor electric street railways, comprising :t member eds-.plied to be mounted :it the top or the trollejirv pole and providing` n transversely slotted end, zr bell rotzitnbly held in seid member having' :istem projecting through seid slot and adapted to receive u trolley `ivheel Vl'ork, e roller on seid stem engaging the opposite wells oi the slot, end e cross- Jiece et the opposite side ol said bell from seid stem having e limited twisting in vement in n recess in the support A trolley reed support4 iter electric street railways, comprising e member having` e substantially cylindrical @1d to conn ct u'ith the top of e trolley pole and being divided into halves for the ren'izrinder ol: length, f1 bell between said halves having e stem projecting` therefrom and en opposite neck, a. roller on seid stem and e cr piece on seidneck7 seid halves being?Y oppositely holl u ed to provide n, sent lor seul bell and oppositely ecessed :it their enter ends to provide e passage toi .1 d stenti und bearings tor said roller end cppositely recessed at their inner ends to liorm e chamber :for seid cross-piece to swingend to have e limited twistingl movement, :ind means for .fastening seid halves together.

El. fr trolleyv heed support for electric. street railways comprising a member having;` n substnntiall;Y cylindrical end to connect nwe-,3:12

with the top of a trolley pole und being,- divided into halves for the remainder of its length, a bell between seid halves hnving n stein projecting therefrom und en opposite neck, n roller on said stem and n crosspiece on seid neck, said halves being oppositelyY holloived to provide e sent 'for said bell and oppositely recessed at their Aouter ends to provide :ipnssage for seid stcni and nt their inner ends to Jform a chamber for seid cross-piece tosiving and to have :L limited tv-isting i'novement, plates secured in seid outer recessed and liorming'trecl-s Yfor the roller on the stem, and means iior t'ztstening seid halves together.

l. A' tr llcy heed support lor electric street fuilwzrys, comprising :1 inemljier adapted vto be mounted et the top ot' the trolley pole and inoviding` a trensversel7 slotted end, e bell rotatably held in said member having n stem projecting through said slot and ndegted to receive e trolley wheel iork` end e crc oicce :it the opposite side oi seid l l YVrom seid stem having e linnted twistingr iovement 'in :t recess m the support.

5. fr trolley heed support torl electric si rect niln'ziys, con; )rising n member havingl :i substantially cylindrical end to connect with the top ot' i trollcj,T pole und being' divided into lmlvesrpor the remainder ot its length, ebnll between seid halves having); i stem projecting therefrom and nn opposite neck, a cross-piece on said neck, said halves being oppositely holloived to provide e senr ior seid be ll and oppsitely recessed et their outer ends to provide n passage Yfor said stem and at their inner ends to torni :i cheniber for seid cross-piece to swingl and to have n limited twisting' movement, :ind means flor fastening' seid halves together.

RCHARD J. KRUTHPHM. 

